SIERRA ANCHA, ARIZONA

Period of Record General Climate Summary - Growing Degree Days

Station:(027876) SIERRA ANCHA
From Year=1913 To Year=1979
Growing Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
40 M	122	165	287	477	724	993	1150	1096	952	674	319	154	7113
40 S	122	288	574	1052	1775	2769	3919	5015	5966	6640	6959	7113	7113
45 M	49	80	168	336	570	843	995	941	802	521	193	65	5563
45 S	49	129	297	633	1202	2046	3041	3981	4783	5304	5497	5563	5563
50 M	14	29	80	210	419	693	840	786	652	373	94	19	4208
50 S	14	42	122	332	751	1444	2285	3070	3722	4095	4189	4208	4208
55 M	2	6	29	109	280	543	685	631	502	240	32	3	3063
55 S	2	9	38	147	427	970	1655	2286	2788	3028	3060	3063	3063
60 M	0	1	7	42	161	395	530	476	355	129	5	0	2101
60 S	0	1	8	50	211	606	1136	1612	1967	2096	2101	2101	2101

Corn Growing Degree Days
50 M	83	111	193	309	470	641	745	725	627	426	201	103	4637
50 S	83	195	388	697	1167	1808	2553	3279	3906	4333	4534	4637	4637

M = Monthly Data
S - Running sum of monthly data.
Growing Degree Day units are computed as the difference between the daily average temperature and the base temperature. (Daily Ave. Temp. - Base Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is above the base temperature. Negative numbers are discarded. Example: If the days high temperature was 95 and the low temperature was 51, the base 60 heating degree day units is ((95 + 51) / 2) - 60 = 13. This is done for each day of the month and summed.
Corn Growing Degree Day units have the limitations that the maximum daily temperatures greater than 86 F are set to 86 F and minimums less than 50 F are set to 50 F.
Table updated on Oct 31, 2012
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu